What is an evaporative emissions control system (EVAP)?

An evaporative emissions control system (EVAP) is designed specifically to prevent fuel vapors from escaping into the atmosphere. This system captures fuel vapors from the fuel tank and stores them in a charcoal canister. When the engine runs, these vapors are drawn into the engine and burned during combustion, which helps reduce air pollution and improve fuel efficiency. The primary function of the EVAP system is to minimize the release of harmful hydrocarbons that contribute to air quality issues. This system is crucial for meeting environmental regulations and is a key component in modern vehicles to help reduce emissions.